Single-inclusive hadron production in transversely polarizedppandp¯pcollisions with threshold resummation

Abstract

We investigate the resummation of large logarithmic perturbative corrections to the partonic cross sections for single-inclusive high-${p}_{T}$ hadron production in collisions of transversely polarized hadrons. We perform the resummation to next-to-leading logarithmic accuracy. Phenomenological results are given for $\overline{p}p$ collisions at center-of-mass energy $\sqrt{S}=14.5\text{ }\text{ }\mathrm{GeV}$ and for $pp$ collisions at $\sqrt{S}=62.4\text{ }\text{ }\mathrm{GeV}$ and at $\sqrt{S}=10\text{ }\text{ }\mathrm{GeV}$, which are relevant for possible experiments at the GSI-FAIR, RHIC and J-PARC facilities, respectively. We find significant enhancements of the spin-dependent and spin-averaged cross sections, but a decrease of the double-spin asymmetry ${A}_{TT}^{\ensuremath{\pi}}$.